(19)
(11) EP 0 304 167 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
31.05.1989 Bulletin 1989/22

(43) Date of publication A2:
22.02.1989 Bulletin 1989/08

(21) Application number: 88306655.7

(22) Date of filing: 20.07.1988
(51) International Patent Classification (IPC)4: B22D 19/14, C22C 1/09
(84) Designated Contracting States:
AT CH DE ES FR GB IT LI SE

(30) Priority: 20.07.1987 GB 8717067

(71) Applicant: CRAY ADVANCED MATERIALS LIMITED
Gosport Hampshire PO12 1JB (GB)

(72) Inventors:
  • Clifford, Andrew Winsloe
    Crewkerne Somerset (GB)
  • Cook, William Joseph
    Yeovil Somerset BA22 9EL (GB)

(74) Representative: Eyles, Christopher Thomas 
W.P. THOMPSON & CO. Celcon House 289-293 High Holborn
London WC1V 7HU
London WC1V 7HU (GB)


(56) References cited: : 
   
       


    (54) Production of fibre reinforced metal sections


    (57) Fibre reinforced metal sections are produced by forcing molten metal into a die chamber 6 through which fibres are fed at a controlled speed from a fibre inlet orifice in ingate 5 to an exit die 7 having an exit orifice corresponding to the cross-section of the desired reinforced cast section. The molten metal is held in a pressurisable second chamber 11 from which it is forced by the pressure of an inert gas into the die chamber 6 so as to infiltrate the fibres. Important parameters in operation of the process are infiltration pressure, ingate die temperature and exit die temperature, molten metal temperature, and fibre feed rate.







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